strange "no more pads available" error generated by a deinterleave element

[Charlie Laub]

Through experimentation I discovered that if I replace the second alsasink
(e.g. alsasink device='hw:CARD=Audio,DEV=0') with fakesink the error does
not occur. This is probably a clue about the source of the error.

 

I tried to revert back to the original alsasink, and set the provide-clock
property to false, however, the error still occurred. 

 

Is there anything else I might try to root out the problem?

 

 

 

From: gstreamer-devel <gstreamer-devel-bounces at lists.freedesktop.org> On
Behalf Of Charlie Laub via gstreamer-devel
Sent: Sunday, July 11, 2021 1:57 PM
To: charleslaub at sbcglobal.net; 'Discussion of the development of and with
GStreamer' <gstreamer-devel at lists.freedesktop.org>
Cc: Charlie Laub <charleslaub at sbcglobal.net>
Subject: RE: strange "no more pads available" error generated by a
deinterleave element

 

I attempted to insert a queue between the deinterleaved source and the tee,
but this did not change the delayed linking error. Below is the new client
pipeline, followed by the complete debug output generated by gst-launch-1.0.
Info regarding the error is found starting in message #399. Any thoughts on
what might be causing this and how to figure that out and fix the issue
would be helpful.

 

 

rtpbin name=client_rtpbin ntp-time-source=ntp ntp-sync=true latency=60
rtp-profile=avpf buffer-mode=synced  

 

udpsrc port=32768 caps='application/x-rtp, media=(string)audio,
clock-rate=(int)48000, encoding-name=(string)L16, channels=(int)1,
payload=(int)96' ! client_rtpbin.recv_rtp_sink_0  

client_rtpbin. !  rtpL16depay !  audioconvert ! audio/x-raw,format=F32LE !
deinterleave name=input  

udpsrc port=32769 ! client_rtpbin.recv_rtcp_sink_0  

client_rtpbin.send_rtcp_src_0 ! udpsink host=192.168.1.201 port=32769
sync=false async=false     

 

audiointerleave name=output0 latency=100000000 ! queue ! alsasink
device='hw:CARD=sndrpihifiberry,DEV=0'   

audiointerleave name=output1 latency=100000000 ! queue ! alsasink
device='hw:CARD=Audio,DEV=0'    

 

input.src_0 ! queue ! tee name=input_ch0       

 

input_ch0. ! queue ! ladspa-acdf-so-acdf type=26 db=-5 fp=950 qp=1.3 !
ladspa-acdf-so-acdf type=28 fp=1200 qp=0.5 fz=1800 qz=0.5 !
ladspa-acdf-so-acdf type=5 db=-4 fp=6000 ! tee name=right     

 

right. ! queue ! ladspa-acdf-so-acdf type=22 db=-1 fp=2700 qp=0.6 !
ladspa-acdf-so-acdf type=22 fp=2700 qp=0.71 ! audioconvert !
'audio/x-raw,format=S32LE,channel-mask=(bitmask)0x1' ! output0.sink_0     

right. ! queue ! ladspa-acdf-so-acdf type=21 fp=2200 qp=0.71 !
ladspa-acdf-so-acdf type=21 fp=2200 qp=0.71 ! audioconvert !
'audio/x-raw,format=S32LE,channel-mask=(bitmask)0x2' ! output0.sink_1     

 

input_ch0. ! queue ! ladspa-acdf-so-acdf type=28 db=-3 fz=38 qz=0.42 fp=27
qp=0.8 ! ladspa-acdf-so-acdf type=21 fp=120 qp=0.71 ! ladspa-acdf-so-acdf
type=21 fp=120 qp=0.71 ! tee name=sub     

sub. ! queue ! audioconvert !
'audio/x-raw,format=S32LE,channel-mask=(bitmask)0x1' ! output1.sink_0     

sub. ! queue ! ladspa-acdf-so-acdf type=0 polarity=-1 ! audioconvert !
'audio/x-raw,format=S32LE,channel-mask=(bitmask)0x2' ! output1.sink_1

 

 

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